At the end of the film, Colter Stevens has been transported to the train, where he finally averts the explosion and then stays in the body of Sean Fentress. It appears this is possible because he isn’t killed as Sean, so he isn’t snapped back to his body. If he had failed, he would be dead for good since Goodwin pulls the plug on his body.
But what about the real Sean Fentress? Since the Source Code machine is thought to just tap into the memory of someone already dead, there’s not a lot of moral consideration for Fentress considering the mission (which is also Stevens’ situation). But since Sean Fentress doesn’t die on the train due to Stevens’ intervention, what happens to his consciousness? Continue reading